Phenobarbital may interact with other medications so it's best to refer to together with your veterinarian if your dog is on other medication. Soon after prolonged use, Phenobarbital may cause substantial liver impairment. Brand Name That’s why we make getting pet meds by NorthWestPharmacy.com as streamlined and simple as possible. https://phenobarbitalonlinepharma15703.wikiconversation.com/7097625/5_simple_techniques_for_pentobarbital_oral_liquid_purchase